Cu(I)-catalyzed coupling of diaryldiazomethanes with terminal alkynes: an efficient synthesis of tri-aryl-substituted allenes
作者:Chenggui Wu、Fangdong Hu、Zhenxing Liu、Guisheng Deng、Fei Ye、Yan Zhang、Jianbo Wang
DOI:10.1016/j.tet.2015.10.043
日期:2015.12
A highly efficient method for the synthesis of tri-aryl-substituted allenes has been developed through Cu(I)-catalyzed coupling of diaryldiazomethanes with terminalalkynes. The reaction is under mild conditions and uses simple and inexpensive CuI as the catalyst. Mechanistically, the reaction follows a pathway involving Cu(I) carbene migratory insertion.